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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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IndustryEnergy & Environment
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Matching companies

9'016 companies found

Heizverbund untere Kniri AG Stans Logo

Heizverbund untere Kniri AG Stans 

Stans · Since 2009

The core activity of Heizverbund untere Kniri AG Stans is the production and distribution of heat energy to buildings in Stans, using a heating plant operated with wood chip furnaces and a pipeline network that supplies the heat energy to the connected buildings.

Energy Suppliers
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Heizverbund Kloster Kappel GmbH Logo

Heizverbund Kloster Kappel GmbH 

Kappel Am Albis · Since 2013

Energy Suppliers
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Heizwerk Oberdiessbach AG Logo

Heizwerk Oberdiessbach AG 

Oberdiessbach · Since 2010

The core activity of HEWO Heizwerk Oberdiessbach AG is the generation and supply of district heating for the provision of buildings with heating and hot water.

Energy Suppliers
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Heizwerk Uri AG Logo

Heizwerk Uri AG 

Attinghausen · Since 2007

Heizwerk Uri AG supplies process heat and space heating to nearby industrial customers and to municipalities. The facility operates biomass boilers, feeds waste heat from on-site electricity production into the district heating network, and runs a heat plant at the Moosbad in Altdorf that serves the swimming pool and adjacent properties.

Energy Suppliers
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HELAMIN TECHNOLOGY HOLDING SA Logo

HELAMIN TECHNOLOGY HOLDING SA 

Le Grand-Saconnex · Since 2001

The core activity of Helamin Technology Holding Group is the development, manufacture and marketing of advanced, environmentally friendly water treatment products for steam boiler and cooling water systems under the HELAMIN brand. These products are designed to prevent corrosion and deposits in these systems and are used worldwide in various industries.

Sustainability Sector
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Helianthus AG Logo

Helianthus AG 

Bachenbülach · Since 2022

The core activity of Helianthus AG is the planning, implementation and operation of photovoltaic systems on the roofs of industrial, commercial, office and agricultural businesses. The company offers its customers a comprehensive service, including permitting, installation, maintenance and marketing of the generated solar power, whereby customers do not have to make any investments and instead receive a roof rental fee or a fixed electricity price.

Solar & Photovoltaics
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Helion Energy AG Logo

Helion Energy AG 

Cham · Since 2022

The core activity of Helion Energy AG is the planning, installation and maintenance of renewable energy systems, particularly photovoltaic systems, energy storage systems, heat pumps and charging stations for electric vehicles. The company also provides consulting and services in the field of energy efficiency and renewable energies.

Solar & Photovoltaics
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HEMO Recycling AG Logo

HEMO Recycling AG 

Oberkirch Lu · Since 2021

The core activity of HEMO Recycling AG is the development, construction, sale and maintenance of plants for the recycling of asphalt, in particular the recovery of standard-compliant aggregates from old asphalt for new asphalt, concrete and mineral mixtures.

Sustainability Sector
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HempMate AG Logo

HempMate AG 

Brunnen · Since 2018

HempMate AG is active in the production and distribution of hemp products, particularly CBD products. The core activity includes the cultivation of hemp, the development and manufacture of hemp products, as well as the distribution of these products through various channels. The company emphasizes sustainability, naturalness, and quality, and strives to present hemp as a natural product in a positive light.

Sustainability Sector
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HEnergie Härkingen HEH Logo

HEnergie Härkingen HEH 

Härkingen · Since 2005

The core activity of HEnergie Härkingen (HEH) is the supply of electricity and the operation of a distribution network for electricity in the Härkingen region. The company is 100% owned by the municipality of Härkingen and offers services such as electricity supply, meter reading, connection and disconnection, as well as fault repair services.

Energy Suppliers
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.